norviel



June 21, 1932. I H NQRVIEL 1,864,460

SWITCH AND COIL UNIT Original Filed Dec. 21. 1927 2 Sheets-Sheet 1 be r Harry E Norvie/ Patented June 21, 1932 UNITED STATES PATENT OFFICE HARRY E. NORVIEL, OI ANDERSON, INDIANA, ASSIGNOR TO DELCO-REMY CORPGRA- TION, OF ANDERSON, INDIANA, A CORPORATION OF DELAWARE SWITCH AND COIL UNIT Original application filed December 21, 1927, Serial No. 241,679. Divided and this application filed March 25, 1931, Serial No. 525,198. Renewed April 12, 1932..

This invention relates to an ignition switch and coil units for automotive vehicles, this application being a division of my application, Serial No. 241,679, filed December 21, 1927, which issued into lPatent No. 1,844,- 788, granted l ebruary 9, 1932. 7

One of theobjects of the present invention is to produce at a low cost, a lock switch and a coil unit that is rugged in construction and reliable in operation.

Another object of the present invention is to provide a unit comprising a plurality of ignition coils and a single key operated switch for controlling the connection of the coils with a current source.

Further objects and advantages of the present invention will be apparent from the following description, reference being bad to the accompanying drawings, wherein a preferred form of embodiment of the present invention is clearly shown.

Inthe drawings:

Fig. 1 is a front View of a unit embodying the present invention. 1

Fig. 2 is a side view, partly in longitudinal section, the section being taken on the line 2-2 of Fig. l.

Fig. 3 is a view looking in the direction of the arrow 3 in Fig. 2, the switch case being removed.

Fig. 4 is a fragmentary sectional view taken principally on the line -l4 of Fig. 1.

Fig. 5 is a fragmentary sectional view taken on the line 5 5 of Fig. 1.

Fig. 6 is a fragmentary sectional view looking in the direction of arrow 6 of Fig. .5.

Fig. 7 is a side view, partly in longitudinal section, of a modied form of lock-switch and coil unit embodying the present invention.

Fig. 8 is a wiring diagram of the circuits included in the form shown in Fig. 2.

The ignition coil used in both forms of the invention may be any suitable ignition coil having a non-conducting end cover which may serve as a support for switch contacts.

one suitable ignition coil is that shown in the patent to \Vil'liam A. (hryst ct al, $1,792,730 issued February 17, 1am. This coil comprises a tubular metallic case 20 which cooperates with a. non-conducting end cover 21-and a non-conducting end cover 22 to enclose the windings and magnetic circuit members of the coil and also the leads from the coils to certain contacts carried by the covers. The coil comprises a secondary winding 23 wrapped upon a non-conducting tube 2-l and covered by non-conducting wrapping 25. The tube 2d receives a central magnetic circuit provided by a bundle of iron wires 26, which extend beyond the end of the margins 27 of the paper strips which insulate the layers of secondary turns. The core 26 terminates short of the'left hand end of tube 24 and the left hand end of the paper margins 28. The end member 22 is provided with an annular flange 29 which defines a recess 30 for receiving a non-conduct ing disc 31 and portions of the wrapping 25, the paper margins 28 and the tube 24, and a non-conducting plug 32 located within the tube 24. In this way, the left end of the secondary winding is supported against lateral movement. The cover member 21 is provided with a flange 33 for receiving the right hand end of the wrapping 25, a portion of the paper margins 27, and of the tube 24 and of the core wires 26. Thus the right hand end of the secondary coil 23 and otthe core 26 is supported against lateral movement. A non-conducting tube 34 upon which the primary coil 85 is wound is confined between the flanges 29 and 33 to prevent lateral and longitudinal movement thereof. There is a space between the tubes 34 and 25 in order that the hydrolene 36, introduced at either end of the case 20 before the covers are at tached, may flow between the primary and secondary coils. The primary winding 35 is surrounded by a tube 37 upon which is wound a strip of magneticsheet material,

the turns of which are insulated by sheet insulating material. The wrapping of magnetic material and insulating material about the tube 37 is indicated by numeral 88.

The end cover 21 is provided with a hole 40 for receiving the outside lead 41 of the secondary 23 and the inside lead 4-2 of the primary These lead wires are attached by soldering toe terminal plate 43 attached to end cover 23. and receiving a terminal screw 44. The cover 21 is provided with a hole for receiving a wire 46 which is attached to a terminal plate 47 receiving a terminal screw :8. The. other end of the wire 46 is 'led through a hole 49 provided in the end cover 22 and is connected with rivet 50 having its head 51 embedded in the insulating material 22 which is preferably a molding compound which is molded around the rivet 50. The cover 22 is provided with an insert-rivet 52 to which a wire 53 is attached, this wire passing through a hole 5-1 in the cover 22 and connected with the outside in turn of the primary 35.

The construction of the upper coil shown in Fig. 2 is the same as the lower, but certain connections shown in the lower coil are omitted in the upper coil. The cases 20 of the coils are welded to metal collars or sleeves provided with ears 61 which are attached by rivets 62 to a coil mounting plate 63. The coil mounting plate 63 is provided with a number of holes 64 as shown in Fig. 3, for receiving screws 65 having threaded engagement with the flange 66 of a switch case member 67 which cooperates with the plate 63 to enclose the switch and lock and the electrical connections between the switch and the ignition coils. The front wall 70 of the switch case 67 carries a tubular boss 71 in which is fitted a tube 72 cooperating with the boss 71 to provide a guide for the barrel 73 of a conventional automobile-type intumbler lock. The details of this lock are not shown but it will .be understood by those skilled in this art by turning the proper key 7-1 which is received by a key cylinder 75, rotatable in the barrel 73, a locking bolt 76 will be retracted against a pressure of a compression spring77 so that the end of the bolt 76 will be located with the flush of the exterior of the barrel 73. The switch case 67 provides recesses 78 and 79 for receiving the bolt 76 in either position of the barrel 73. The barrel 73 is prevented from turning and its movement is limited by providing the barrel with a groove 80 which receives a pin 81 extending from the grooved plug 82 threadedly engaging the case 67. The movement of the barrel 73 is used in operating a switch for controlling the flow of current through the ignition coils.

The ignition switch comprises a pair of resilient blades 84 and 85 which are normally held apart by an l -shaped non-conducting support 86 carrying a contact rivet 87 engageable with the blades 8% and 85 simultaneously. The contact support 86 attached by rivets 88 to a bracket 89 attached by a screw 96 to the barrel 73 and prevented from rotating by pin 81. The contact blade 84 is attached by rivets 92 to a bracket 93 which is attached to the conducting rivet 50 and to a similar rivet 50a provided by an insert in the cover plate 22 as shown particularly in Fig.

Leeaaeo 3. The contact plate 85 is similarly supported by a bracket 94 which is attached to the conducting rivet 52 and by similar rivet 52a to the end cover 22.- The uper coil shown in Fig. 2 is provided with a similar bracket 94 attached by the rivets 52 and 52a. The location of the upper coil relative to the mounting plate 63 is the reverse of the relation of the mounting plate 63 and the lower coil. That is, the bracket 94 of the lower coil is uppermost while the bracket 94. of the upper coil is lowermost as shown in Fig. 3. The two brackets 94 are connected by a strap 95 attached at its ends by the screws 96. The rivets 50 and 50a of the upper coil perform no function, but are present merely because the same cover 22 is used for both coils.

When the lock mechanism is in the position shown in the drawings the switch contacts 84 and 85 will be separated by the non-conducting contact support 86. To close the switch, the key 74 is turned in order to retract the bolt 76 from the recess 78 thereby releasing a spring 100 which, by reason of its location be-' tween the end cover 22 and the barrel 73, causes the barrel 73 to be moved toward the left until the right hand end of the groove 80 is engaged by the end of the pin 81. In this position of the barrel the key 74 may be released to permit the bolt 76 to move into the recess 79 so that the key may be withdrawn if desired. Movement of the barrel 73 as described will cause the contact rivet 87 to move into engagement with the contact blades 84 and 85, thereby closing the switch.

Referring to Fig. 8, when the switch is closed the following ignition circuit will be established: battery 110 ground at 111 and connected with coil terminal plate 47, wire 46 within the coil, contact bracket 93, contact 84, contact 87, contact 85, strap 95 connected with both brackets 94, and parallel primary coil circuits each circuit including the outside lead 53 of the primary, the primary coil 35, the inside lead 42, coil terminal 43, an ignition circuit breaker terminal 112, a movable interrupter contact 113 and a stationary interrupter contact 114 grounded at 115. Each circuit breaker lever includes a rubbing block 116 operated by a cam 117.

In this way a single switch controls the primary circuit of both ignition coils. To open the switch the barrel 73 is pushed inwardly preferably without using a key; and when the bolt 76 has been moved adjacent the recess 78 it will spring into this recess to lock the barrel 73 in switch-open position against the compression of the spring 100. The spring 100 is retained in position by locating one of its ends in a recess 101 provided by the barrel 73 and by placing the spring around a cylindrical lug 102 integral with the end cover 22.

The outside lead 11 of the secondary coil of each coil is grounded through the timer as shown in Fig. 8 by connecting the lead 41 with p the coil terminal plate 43. The inside lead 105 of each secondary coil 23 is connected with the core 26 and the core 26 is connected by a nail 106 with a conducting sleeve 107 which receives the terminal clip of a wire leading to a distributor not shown.

Referring to Fig. 7, in case it is desired to use but one of the ignition coils which have been described with a key-operated ignition switch, the coil base 20 is welded to a sleeve 120 having tangs 121 received bysuitable notches in a switch frame 122 and bent over against the front of the frame 122. The frame 122 cooperates with the sleeve 120 to provide a housing for the switch. The construction of the switch and the key controlled device for operating its movable contact is the same as described in connection with the switch shown in Fig. 2. The connections between the ignition coil and the switch are the same as between the switch and the lower coil of Fig. 2. p

The present invention therefore provides a rugged and compact structure involving a plunger-type key operated device for operating the switch; provides a construction permitting the use of one or more identical ignition coils with the same switch, and provides for using the same switch parts regardless of the number of ignition coils included in the switch and coil unit.

While the form of embodiment of the presentinvention, as herein disclosed, constitutes a preferred form, it is to be understood that ot er forms might be adopted, all coming within the sco e of the claims which follow.

What is claimed is as follows:

1. A switch and coil unit comprising a plurality of ignition coils each having a nonconducting end wall supporting terminal members, a plate'supporting the coils and having apertures through which said end walls are accessible, a conductor electrically connecting certain end wall terminals of the coils, switch contacts su ported by one of the coil end walls, one o the contacts being electrically'connected with said conductor, a case cooperating with the plate to house the conductor and switch contacts, and a movable member supported by the case, and cooperating with said contacts -to open and close an electric circuit. v

2. A switch and coil unit comprising a pluralit of identical ignition coils, a plate supporting the coils and having holes through which end portions of the coils extend to,

close said holes, a case cooperating with the late and coil end portions to rovide a housmg, a switch withm thehouslng and having contacts supported by an end wall of one of the coils, and having an actuating member movably supported by the case, similar conducting brackets on the coil end walls, one of said brackets carrying one of the switch contacts, and a conductor for electrically connecting said brackets.

13. A coil and switch unit comprising, in combination, a tubular housin an ignition coil within the housing, an en housing, a switch including a stationary contact insulatingly mounted" on the end wall and including a contact movable longitudinally of the coil housing and at right angles to the housing end wall, a longltudinally movable controller carrying the movable contact, and a switch case comprising said endwalhand a member carrying the controller, and means for securing the controller carrying member to the coil housing including a tubular member surrounding the housing and attached thereto.

4. A coil and switch unit comprising, in combination, a tubular housing formed of relatively thin sheet metal, an ignition coil within the housing, an end wall for the housing, a switch includin a stationary contact insulatingly mounted on the end wall and including a contact movable longitudinally of the coil housing and at right angles to the housing end wall, a longitudinally movable controller carrying the movable contact, a member supporting and guiding the controller, a relatively thick-walled tubular member surrounding the coil housing and attached thereto, and means for securing said members together whereby at least one of them cooperates with the coil housing end wall to provide a switch case.

5. A coil switch unit comprising, in combination, a unitary subassembly comprising a tubular housing, a coil within the housing, an end wall member for the housing, a switch contact insulatingly fixed to the end wall member, and a tubular member surrounding and fixed to the coil housing; a unitary subassembly including a controller movable axially of the coil, a switch contact carried thereby, and a member supporting and guiding the controller; and means for attaching the tubular member to the controller carrying member whereby at least one of said members cooperates with the end wall member to provide a switch case.

'6. A coil and switch unit comprising, in combination, a tubular housing formed of relatively thin sheet metal, an ignition coil within the housing. an end wall for the housing, a switch including a stationary contact insulatingly mounted on the end wall and including a contact movable longitudinallyof the coil housing and at rightangles to thehousing end wall, a longitudinally movable controller carrying. the movable contact, a member supporting and guiding the controller, a relatively thick walled tubular member surrounding the coil housing and attached thereto, and providing a .switch receiving chamber, and means for securing said members together, whereby the 'conwall for the troller carrying member cooperates with the coil housing end wall and tubular member to provide a switch case.

7. A coil switch unit comprising, in combination, a unitary subassembly comprising a tubular housing, a coil within the housing, an end wall member for the housing, a switch contact insulatingly fixed to the end wall member, and a tubular member surrounding and fixed to the coil housing; a unitary subassembly including a controller movable axially of the coil, a switch contact carried thereby, and a member supporting and guiding the controller; and means for attaching the tubular member to the controller carrying member whereby the controller carrying member cooperates with the coil housing end wall and tubular member to provide a switch case.

8. A coil and switch unit comprising, in combination, an ignition coil, a tubular housing enclosing the coil and having an end wall member, a stationary contact insulatingly supported by the end wall memher, a tubular sleeve surrounding the housing and fixed thereto and projecting beyond the end wall to provide a switch enclosure, a member adapted to be attached to the edge portion of the sleeve, a controller supported and guided by said member, and; a movable contact attached to the controller.

9. A coil and switch unit comprising, in combination, a unitary subassembly comprising an ignition coil, a tubular housing formed of relatively thin sheet metal enclosing the coil, an end wall member for the housing, a stationary contact insulatingly supported by the end wall member, and a tubular sleeve formed of relatively thick sheet metal surrounding the housing and fixed thereto and projecting beyond the end wall to provide a switch enclosure; and a unitary subassembly comprising a member adapted to be fixed against the projecting edge of the sleeve, a controller supported arid guided by said member, a d a movable contact'attached to the contro ler.

10. A coil and switch unit comprising, in combination, a unitary subassembly comprising an ignition coil, a tubular housingformed of relatively thin sheet metal enclosing the coil, an end wall member for the housing, a stationary contact insulatingly supported by the end wall member, and a tubular sleeve formed of relatively thick sheet metal surrounding the housing and fixed thereto and projecting beyond the end wall to provide a switch enclosure, and having tangs projecting longitudinally from the projecting edge thereof; and a unitary subassembly comprising a member adapted to be fixed against the projecting edge of the sleeve and having notches respectively, for receiving the tangs, a controller supported and guided by said member, and a movable contact attached to the controller, said t-angs being bent over against the outside of the controller supporting member to secure the same to the sleeve. 11. A coil and switch unit comprising, in combination, a tubular housing, an ignition coil within the housing, an end wall for the housing, a switch including a stationary contact insulatingly mounted on the end wall and including a contact movable longitudinally of the coil housing and at right angles to the housing end wall, a longitudinally movable controller carrying the movable contact, and a switch case comprising said nonconducting end wall, a sleeve surrounding the coil housing and fixed thereto and projecting beyond the housing end wall, and a member carrying the controller, and means for attaching the controller carrying member to the projecting edge of the sleeve.

12. A coil and switch unit comprising, in combination, a unitary subassembly comprising an ignition coil, a tubular housing formed of relatively thin sheet metal enclosing the coil. an end wall member for the housing, a stationary contact insulatingly supported by the end wall member, and a tubular sleeve formed of relatively thick sheet metal surrounding the housing and fixed thereto and projecting beyond the end wall to provide a switch enclosure; and a unitary subassembly comprising a member adapted to be fixed against the projecting edge of the sleeve, a controller supported by and guided by said member for axial movement relative to the coil and a contact attached to the controller 'and movable at right angles to the housing end wall.

13. A coil and switch unit comprising, in combination, a unitary subassembly comprising an ignition coil, a tubular housing formed of relatively thin sheet metal enclosing the coil, an end wall member for the housing, a stationary contact insulatingly supported by the end wall member; and a tubular sleeve formed of relatively thick sheet metal surrounding the housing and fixed thereto and projecting beyond the end wall to provide a switch enclosure and having tangs projecting longitudinally from the projecting edge thereof; and a unitary subassembly comprising a member adapted to be fixed against the projecting edge of the sleeve and having notches respectively, for receiving the tangs, a controller supported by and guided by said member for axial movement relative to the coil and a contact attached to the controller and movable at right angles to the housing end wall, said tangs being bent over against the outside of the controller supporting memher to secure the same to the sleeve.

In testimony whereof I hereto afiix my signature.

HARRY E. NORVIEL. 

